Caloosahatchee and Okeechobee Conditions Report

Purpose
USACE Data Summary
Lake Okeechobee
Caloosahatchee River Estuary

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Updated: 2021-10-12 10:08:56

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Updated: 2021-10-12 12:05:37

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Purpose

This webpage/report is intended to aggregate information from different agencies (i.e. USACE, SFWMD, FWC, USGS and NOAA) into one spot to help inform local government agencies and stakeholders on conditions within Lake Okeechobee, the Caloosahatchee River and Estuary and Coastal southwest Florida. The data provided here should be considered preliminary and are subject to change.

USACE Data Summary

Daily discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
10-11	0		5737	5	0	0	0	-1047	0	951	7345	2769	3382	2539
10-10	0		7805	8	0	0	0	-994	0	1408	7688	2158	1892	2884
10-09	0		6032	94	0	0	0	-422	0	1749	7400	1567	547	3705
10-08	0		4085	5	0	0	0	-30	0	762	7137	230	300	2291	2,973.2215
10-07	0		2979	3	0	0	0	14	0	30	6430	333	260	2789	2,889.9158
10-06	0		3101	4	0	0	0	18	0	34	7204	190	301	3122	3,080.3289
10-05	0		1805	11	0	0	0	-4	0	15	7718	133	520	3003	2,074.7096
10-04	0		4302	12	0	0	0	-10	0	222	8733	284	869	2870	1,797.0238
10-03	0		3384	52	0	0	0	0	0	260	9334	133	1176	3090	2,072.7261
10-02	0		5452	70	0	0	0	-121	0	367	10725	301	2045	2592	0.0000
10-01	0		3307	8	0	0	0	-87	0	34	10951	420	2596	2174	1,140.4952
09-30	0		6109	83	0	0	0	2	0	222	12674	323	2793	2707	2,891.8993
09-29	0	3972	9384	140	0	0	0	-196	0	650	14180	668	3435	3586	2,977.1885
09-28	0	3922	9927	-41	0	0	0	-369	0	662	17433	1390	4518	4056	965.9499
1Includes discharges from Fisheating Creek, S71, S72, S84, S84X, S65E, and S65EX1

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Average and total net discharge volume in Acre-Feet per day for the last 7-days. Data Source: USACE
Average	0		4506	19	0	0	0	-352	0	707	7275	1054	1029	2905	2,754.544
Total	0	0	31544	130	0	0	0	-2465	0	4949	50922	7380	7202	20333	11,018.176

Average and total net discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
Average	0	3947	5244	32	0	0	0	-232	0	526	9639	779	1760	2958	2,078.496
Total	0	7894	73409	454	0	0	0	-3247	0	7366	134951	10901	24635	41409	22,863.459

Lake Flows: In the past 7 days the total outflow from Lake Okeechobee was 162 AF with 0 AF to the Caloosahatchee through S-77, 130 AF through S-310 in Clewiston, and 0 AF to the EAA through S-351, S-352, and S-354. The total net inflow to the Lake was 53,419 AF (50,922 AF from Fisheating Creek, S-71, S-72,S-84s, S-65EX, and S-65EX1) with a total backflow volume of 2,497 AF from C10A. Water conservation areas received flows of 7,380 AF, 7,202 AF, and 20,333 AF at WCA1, WCA2, and WCA3, respectively. Everglades National Park received 11,018 AF.

Lake Okeechobee Level: 15.83 ft (Operational Management Band)

Lake Okeechobee Inflow: 4791 cfs

Last Week: 15.60 ft

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Lake Okeechobee Outflow: 6 cfs

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Lake Okeechobee Outflow: No cfs

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Weekly Rainfall Total:

WP Franklin 0.74"

Ortona ≥ 0.00"

Moore Haven ≥ 0.98"

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Lake Okeechobee

Stage Elevation

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Lake Okeechobee daily average stage elevation for water year 2022 (WY2022) relative to the last two water years (red line) relative to the Lake Okeechobee Regulation Schedule (LORS) . Data are provisional and subject to change.

Stage and recession rates this time for the current and last three water years
10-11	2019	14.25	-0.12	-0.46
10-11	2020	13.52	0.06	-0.37
10-11	2021	16.14	0.35	1.35
10-11	2022	15.83 A	0.23	0.98
A Value provided by SFWMD DBKEY:N3466
B -0.5 ft 30-d⁻¹ maximum 30-day Recession Rate for HAB Deviation

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As of 10/11/2021 the mean stage elevation in Lake Okeechobee is within the Operational Low Sub- Management Band at a stage elevation of 15.83 feet (NGVD29).

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Lake Okeechobee 7-day and 30-day water level recession/ascension rates during WY2022. Negative values indicate falling water levels (recession) and positive values indicate raising water level (ascension) during this 7-day period . Data are provisional and subject to change.

Regional Rainfall

Weekly (10/05 - 10/11) rainfall totals along the Caloosahatchee River
S79 (WP Franklin)	0.8
S78 (Ortona)	1.7
S77 (Moore Haven)	1.8
1 Data Source: SFWMD DBHYDRO (DBKEYS 16414,15495,16415) and USACE reports
2 Based on data from 10/05/2021 - 10/11/2021

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Relative Algae Condition

Sonde monitoring locations within Lake Okeechobee conducted by SFWMD.

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Daily Chlorophyll, Phycocyanin,relative ratio of Phycocyanin (Phyco) relative to Phyco and Chlorophyll (Chl) and Turbidity within Lake Okeechobee monitored by SFWMD. Chlorophyll and Phycocyanin are plotted on log-scale. Thresholds of concern/risk identified for Chlorophyll (20 and 40 μg/L) and Phycocyanin (40 μg/L; Cotterill et al 2019 & Macário et al 2015). Data are provisional and subject to change.

Cotterill et al (2019) Phycocyanin sensors as an early warning system for cyanobacteria blooms concentrations: a case study in the Rotorua lakes. New Zealand Journal of Marine and Freshwater Research 53:555–570.
Macário et al (2015) New insights towards the establishment of phycocyanin concentration thresholds considering species-specific variability of bloom-forming cyanobacteria. Hydrobiologia 757:155–165.

Weekly mean water quality sonde Chlorophyll and Phycocyanin concentration at monitoring locations across Lake Okeechobee
L001	37	81	Warning	High Concern
L005	52	87	High Concern	High Concern
L006	25	100	Warning	High Concern
LZ40	399	80	High Concern	High Concern
POLESOUT1	99	74	High Concern	High Concern
POLESOUT3	67	62	High Concern	High Concern
1 Based on data from 10/06/2021 - 10/12/2021
2 Chlorophyll Categories: Min. Concern: values < 20 μg L⁻¹ Warning: values ≥ 20μg L⁻¹ and <40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹
3 Phycocyanin Categories: Min. Concern: values < 40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹

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Cyanobacteria Index for Lake Okeechobee for 2021-10-11 (Data Source: NOAA NCCOS)

Blue-Green Algae Sampling Results

<<<<<<< HEAD ======= >>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Blue-green Algae sampling results for the last 30-days for the 10 county area (Lee, Collier, Hendry, Glades, Okeechobee, Martin, Palm Beach, Broward, Miami-Dade and Monroe). Data from FDEP Blue-green algae dashboard Data are provisional and subject to change.

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Of the 85 samples collected, cyanobacteria was dominate in NA samples, 43 samples had toxins present ranging from 0.26 to - μg L⁻¹ (does not include non-detects).

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Of the 67 samples collected, cyanobacteria was dominate in NA samples, 39 samples had toxins present ranging from 1.1 to 44 μg L⁻¹ (does not include non-detects or samples between MDL and PQL).

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Caloosahatchee River Estuary

Discharge

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Fort Myers Yacht Basin salinity (SCCF-RECON) and S79 discharge (SFWMD) data for the last six months. Data are provisional and subject to change.

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Fort Myers Yacht Basin salinity (SCCF-RECON) and S79 discharge (SFWMD) data for the last last 30 days. Data are provisional and subject to change.

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 S-77 (from Lake Okeechobee) and S-79 (to Tidal Basin) flow data along the C-43 and Caloosahatchee River. C-43 Basin Flow was calculated as the difference from S-77 and S-79. Data are provisional and subject to change.

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>>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Daily, 14-day moving average and 30-day moving average discharge for S-79 relative to the Northern Estuaries RECOVER performance measure and the established minimium flows and levels (MFLs) for the recent 30-day period. Data are provisional and subject to change.

As of Oct 11, discharges conditions are within the damaging RECOVER salinity envelope.

Cumulative discharge for S-79 (to Tidal Basin) and S-77 (from Lake Okeechobee) for the last three Florida Water Years (May - April). Day of water year is analogous to day of year with Day 1 = May 1^st. Data are provisional and subject to change.

Chlorophyll, Phycocyanin & fDOM

Top: Daily dissolved organic matter (fluorescence DOM). Middle: Daily relative fluorescence Chlorophyll and Phycocyanin observed at the floating sensor bouy at S-79 monitoring by USGS. Bottom: The relative ratio of Phycocyanin (Phyco) relative to Phyco and Chlorophyll (Chl). Data are provisional and subject to change.

Estuary Salinity

Daily average bottom salinity data for the last 14-days from sampling locations within the tidal Caloosahatchee River Estuary relative to oyster health (Sanibel, Shell Point and Cape Coral) and tape grass (Vallisneria americana) health (Ft. Myers only) conditions. Data are provisional and subject to change.

Red Tide

<<<<<<< HEAD ======= >>>>>>> 25e95cd4b3161b99f579bae73504c763829ccdd2 Red tide sampling results for the last 30-days from just south of Tampa Bay to the Florida Keys. Data from NOAA HABSOS Program Data are provisional and subject to change.

Count of samples within each abundance category within the greater Caloosahatchee River Estuary (see grey box on map)
not present/background (0-1,000)	89
very low (>1,000-10,000)	2
low (>10,000-100,000)	2
medium (>100,000-1,000,000)	---
high (>1,000,000)	---

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Chlorophyll fluorescence for coastal southwest Florida for 2021-10-11 (Data Source: NOAA NCCOS)

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Contact pjulian@sccf.org with questions

Daily discharge volume in Acre-Feet per day for the last 14-days. Data Source: USACE
Date	S77	S78	S79	S310	S351	S352	S354	L8	S308	S80	NthLake 1	WCA1	WCA2	WCA3	ENP
10-11	0		5737	5	0	0	0	-1047	0	951	7345	2769	3382	2539
10-10	0		7805	8	0	0	0	-994	0	1408	7688	2158	1892	2884
10-09	0		6032	94	0	0	0	-422	0	1749	7400	1567	547	3705
10-08	0		4085	5	0	0	0	-30	0	762	7137	230	300	2291	2,973.2215
10-07	0		2979	3	0	0	0	14	0	30	6430	333	260	2789	2,889.9158
10-06	0		3101	4	0	0	0	18	0	34	7204	190	301	3122	3,080.3289
10-05	0		1805	11	0	0	0	-4	0	15	7718	133	520	3003	2,074.7096
10-04	0		4302	12	0	0	0	-10	0	222	8733	284	869	2870	1,797.0238
10-03	0		3384	52	0	0	0	0	0	260	9334	133	1176	3090	2,072.7261
10-02	0		5452	70	0	0	0	-121	0	367	10725	301	2045	2592	0.0000
10-01	0		3307	8	0	0	0	-87	0	34	10951	420	2596	2174	1,140.4952
09-30	0		6109	83	0	0	0	2	0	222	12674	323	2793	2707	2,891.8993
09-29	0	3972	9384	140	0	0	0	-196	0	650	14180	668	3435	3586	2,977.1885
09-28	0	3922	9927	-41	0	0	0	-369	0	662	17433	1390	4518	4056	965.9499
1Includes discharges from Fisheating Creek, S71, S72, S84, S84X, S65E, and S65EX1

Average and total net discharge volume in Acre-Feet per day for the last 7-days. Data Source: USACE
Statistic	S77	S78	S79	S310	S351	S352	S354	L8	S308	S80	NthLake	WCA1	WCA2	WCA3	ENP
Average	0		4506	19	0	0	0	-352	0	707	7275	1054	1029	2905	2,754.544
Total	0	0	31544	130	0	0	0	-2465	0	4949	50922	7380	7202	20333	11,018.176

Stage and recession rates this time for the current and last three water years
Date (Month-Day)	Water Year	Stage (ft, NGVD29)	7-Day Recession Rate (ft 7-d⁻¹)	30-Day Recession Rate (ft 30-d⁻¹) B
10-11	2019	14.25	-0.12	-0.46
10-11	2020	13.52	0.06	-0.37
10-11	2021	16.14	0.35	1.35
10-11	2022	15.83 A	0.23	0.98
A Value provided by SFWMD DBKEY:N3466
B -0.5 ft 30-d⁻¹ maximum 30-day Recession Rate for HAB Deviation

Weekly (10/05 - 10/11) rainfall totals along the Caloosahatchee River
Mointoring Location 1	Weekly Rainfall Total (inches) 2
S79 (WP Franklin)	0.8
S78 (Ortona)	1.7
S77 (Moore Haven)	1.8
1 Data Source: SFWMD DBHYDRO (DBKEYS 16414,15495,16415) and USACE reports
2 Based on data from 10/05/2021 - 10/11/2021

Weekly mean water quality sonde Chlorophyll and Phycocyanin concentration at monitoring locations across Lake Okeechobee
Site	7-day Mean Chlorophyll Conc. (μg L⁻¹) 1	7-day Mean Phycocyanin Conc. (μg L⁻¹) 1	Green Algal Concern Category 2	Blue-green Algae Concern Category 3
L001	37	81	Warning	High Concern
L005	52	87	High Concern	High Concern
L006	25	100	Warning	High Concern
LZ40	399	80	High Concern	High Concern
POLESOUT1	99	74	High Concern	High Concern
POLESOUT3	67	62	High Concern	High Concern
1 Based on data from 10/06/2021 - 10/12/2021
2 Chlorophyll Categories: Min. Concern: values < 20 μg L⁻¹ Warning: values ≥ 20μg L⁻¹ and <40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹
3 Phycocyanin Categories: Min. Concern: values < 40 μg L⁻¹ High Concern: values ≥ 40 μg L⁻¹

Count of samples within each abundance category within the greater Caloosahatchee River Estuary (see grey box on map)
Cell Abundance (Cells L⁻¹)	Number of Samples
not present/background (0-1,000)	89
very low (>1,000-10,000)	2
low (>10,000-100,000)	2
medium (>100,000-1,000,000)	---
high (>1,000,000)	---